CN112146867B - Simulation experiment platform for compounding high-pressure water jet with hob - Google Patents
Simulation experiment platform for compounding high-pressure water jet with hob Download PDFInfo
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- CN112146867B CN112146867B CN202011090157.XA CN202011090157A CN112146867B CN 112146867 B CN112146867 B CN 112146867B CN 202011090157 A CN202011090157 A CN 202011090157A CN 112146867 B CN112146867 B CN 112146867B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention discloses a simulation experiment platform combining high-pressure water jet and a hob, which comprises a bottom plate, wherein the upper end of the bottom plate is fixedly connected with a plurality of supporting blocks, the upper ends of the supporting blocks are fixedly connected with supporting plates, and the upper ends of the supporting plates are fixedly connected with simulation test cylinders; be provided with clearance rotary mechanism in the backup pad, clearance rotary mechanism's output is connected with the support, install flexible actuating mechanism on the support, flexible actuating mechanism possesses two outputs, and one of them output is connected with water jet and hobbing cutter mounting panel, and another one output is connected with the bracing piece, the one end that flexible actuating mechanism was kept away from to the bracing piece is rotated and is connected with the base plate, the one end that the bracing piece was kept away from to the base plate is provided with the simulation clamp plate. The invention has the outstanding characteristics that the high-pressure water jet equipment and the traditional hobbing cutter equipment are conveniently arranged on the water jet and hobbing cutter mounting plate, and the high-pressure water jet technology is adopted for cutting, thereby providing a simulation platform for the shield machine.
Description
Technical Field
The invention relates to the technical field of shield tunneling machines, in particular to a simulation experiment platform for compounding high-pressure water jet and a hob.
Background
The basic working principle of the shield tunneling machine is that a cylindrical steel component is pushed forwards along the axis of the tunnel to excavate soil. The casing of the cylinder assembly, the shield, acts as a temporary support for the excavated, not yet lined tunnel section, bearing the pressure of the surrounding soil layers and sometimes also the groundwater pressure and the water that is trapped outside. The operations of digging, dumping, lining and the like are carried out under the shield of the shield.
When the former shield machine encounters more irregular hard rocks in the underground rock layer in front, the abrasion to the cutter head of the shield machine is large, and the cutter head needs to be cut in advance, but an experimental platform for the shield machine to be cut in advance is lacked in the prior art.
Disclosure of Invention
The invention aims to solve the problems and provides a simulation experiment platform combining high-pressure water jet and a hob.
In order to achieve the purpose, the invention adopts the following technical scheme:
a simulation experiment platform combining high-pressure water jet and a hob comprises a bottom plate, wherein the upper end of the bottom plate is fixedly connected with a plurality of supporting blocks, the upper ends of the supporting blocks are fixedly connected with supporting plates, and the upper ends of the supporting plates are fixedly connected with simulation test barrels;
the support plate is provided with a gap rotating mechanism, the output end of the gap rotating mechanism is connected with a support, a telescopic driving mechanism is mounted on the support and provided with two output ends, one of the output ends is connected with a water jet and a hob mounting plate, the other output end is connected with a support rod, one end of the support rod, far away from the telescopic driving mechanism, is rotatably connected with a substrate, and one end of the substrate, far away from the support rod, is provided with a simulation pressing plate;
the support rod is provided with a rotary driving mechanism, the rotary driving mechanism is provided with an output end, and the output end of the rotary driving mechanism is connected with the substrate;
the supporting rod is rotatably connected with a first bearing sleeve, the outer surface of the first bearing sleeve is rotatably connected with at least one connecting rod, and one end, far away from the first bearing sleeve, of the connecting rod is rotatably connected with a fixing piece for fixing a simulation pressing plate.
Optionally, clearance rotary mechanism comprises first motor, initiative driver plate, driven sheave and pivot, first motor is installed in the backup pad, the output shaft key-type connection of initiative driver plate and first motor, initiative driver plate and driven sheave meshing, driven sheave and pivot key-type connection, the one end of pivot is rotated and is connected in the backup pad, the other end and the support rotation of pivot are connected.
Optionally, the driven sheave is a four-groove sheave, and the rotating shaft is rotatably connected to the supporting plate through a deep groove ball bearing.
Optionally, flexible actuating mechanism comprises second motor, worm wheel, bearing frame, lead screw, nut and bearing, the second motor is installed on the support, the output shaft and the worm fixed connection of second motor, the pot head that the second motor was kept away from to the worm is equipped with the bearing frame, the bearing frame is installed on the support, worm and worm wheel meshing, worm wheel and nut interference fit, the surface interference fit of nut has the bearing, bearing fixed connection is on the support, nut and lead screw threaded connection, the lead screw both ends correspond two outputs of flexible actuating mechanism respectively, the one end and the water jet of lead screw and hobbing cutter mounting panel fixed connection, the other end and the bracing piece fixed connection of lead screw.
Optionally, the rotary driving mechanism is composed of a base, a third motor, a second bearing sleeve, a first gear and a second gear, the base is fixedly connected with the supporting rod, the third motor is installed on the base, an output shaft of the third motor is connected with the first gear in a key mode, the first gear is meshed with the second gear, the second gear is connected with the outer surface of the second bearing sleeve in a key mode, the second bearing sleeve is connected with the supporting rod in a rotating mode, and the outer surface of the second bearing sleeve is fixedly connected with the substrate.
Optionally, the fixing part comprises a connecting block and an inserting rod which are integrally formed and cast, a through hole for the inserting rod to pass through is formed in the substrate, and a blind hole for accommodating the inserting rod is formed in the simulation pressing plate.
Optionally, the simulation pressing plate is of a disc-shaped structure, a groove for accommodating the simulation pressing plate is formed in the substrate, and the surface of one end, far away from the substrate, of the simulation pressing plate is an irregular concave-convex surface.
The invention has the following advantages:
according to the invention, through the arrangement of the gap rotating mechanism, the continuous rotating motion of the first motor is converted into the gap rotation of the rotating shaft through the engagement between the driving dial and the driven sheave, so that the support on the driven sheave is driven to rotate finally, the driven sheave adopts the four-groove sheave, the rotating shaft is rotatably connected to the supporting plate through the deep groove ball bearing, and the four-groove sheave is convenient for realizing the four-angle rotation of the support, so that the exchange of the positions of the simulation pressing plate, the water jet and the hob mounting plate is realized.
According to the invention, the telescopic driving mechanism is arranged, power is provided through the second motor, the speed reduction and torque increase output are realized through the meshing of the worm wheel and the worm, and a larger torque is provided, so that the nut and the screw rod are driven to move, the screw rod pushes the substrate and the simulation pressing plate (or the water jet and the hob mounting plate) to move, and the simulation material is extruded and compacted.
According to the invention, the rotation driving mechanism is arranged, the third motor provides rotation power, and the third motor drives the first paper wheel and the second gear to move, and finally drives the second bearing sleeve, the substrate and the simulation pressing plate (or the water jet and the hob mounting plate) to rotate, so that the substrate and the simulation pressing plate (or the water jet and the hob mounting plate) can rotate while linearly displacing, and the compaction is tighter (or the rotation of the simulation shield machine is simulated by rotating the water jet and the hob mounting plate).
According to the invention, the simulation pressing plate is arranged and adopts a disc-shaped structure, the base plate is provided with a groove for accommodating the simulation pressing plate, and the surface of one end of the simulation pressing plate, which is far away from the base plate, is an irregular concave-convex surface. The irregular concave-convex surface is convenient for compacting the simulation material put into the simulation test cylinder and forms an irregular surface after compaction, thereby simulating an underground irregular environment.
The invention has the outstanding characteristics that the high-pressure water jet equipment and the traditional hobbing cutter equipment are conveniently arranged on the water jet and hobbing cutter mounting plate, and the high-pressure water jet technology is adopted for cutting, thereby providing a simulation platform for the shield machine.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the gap rotation mechanism of FIG. 1 of the present invention;
FIG. 3 is an enlarged schematic view of the telescoping drive mechanism of FIG. 1 in accordance with the present invention;
FIG. 4 is an enlarged schematic view of the rotary drive mechanism of FIG. 1 in accordance with the present invention;
FIG. 5 is a schematic view of the insert rod of FIG. 1 according to the present invention.
In the figure: the device comprises a base plate 1, a support block 2, a support plate 3, a simulation test cylinder 4, a gap rotating mechanism 5, a first motor 51, a driving dial 52, a driven grooved wheel 53, a rotating shaft 54, a telescopic driving mechanism 6, a second motor 61, a worm 62, a worm gear 63, a bearing seat 64, a lead screw 65, a nut 66, a bearing 67, a rotary driving mechanism 7, a base 71, a third motor 72, a second bearing sleeve 73, a first gear 74, a second gear 75, a fixing part 8, a connecting block 81, an inserting rod 82, a simulation pressing plate 9, a base plate 10, a connecting rod 11, a support rod 12, a first bearing sleeve 13, a water jet and hob mounting plate 14 and a support 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, a simulation experiment platform combining a high-pressure water jet and a hob comprises a bottom plate 1, wherein the upper end of the bottom plate 1 is fixedly connected with a plurality of supporting blocks 2, the upper ends of the supporting blocks 2 are fixedly connected with supporting plates 3, and the upper ends of the supporting plates 3 are fixedly connected with simulation test cylinders 4.
The gap rotating mechanism 5 is arranged on the supporting plate 3, the output end of the gap rotating mechanism 5 is connected with the support 15, the gap rotating mechanism 5 is composed of a first motor 51, a driving dial 52, a driven grooved wheel 53 and a rotating shaft 54, the first motor 51 is installed on the supporting plate 3, the driving dial 52 is in key connection with an output shaft of the first motor 51, the driving dial 52 is meshed with the driven grooved wheel 53, the driven grooved wheel 53 is in key connection with the rotating shaft 54, one end of the rotating shaft 54 is rotatably connected onto the supporting plate 3, and the other end of the rotating shaft 54 is rotatably connected with the support 15. The gap driving mechanism 5 functions to convert the continuous rotation of the first motor 51 into the gap rotation of the rotating shaft 54 by the engagement between the driving dial 52 and the driven sheave 53, thereby finally achieving the turning of the bracket 15 thereon.
In the embodiment, the driven grooved wheel 53 is a four-groove grooved wheel, the rotating shaft 54 is rotatably connected to the supporting plate 3 through a deep groove ball bearing, and the four-groove grooved wheel is convenient for realizing the four-angle rotation of the bracket 15, so that the exchange of the positions of the simulation pressure plate 9 and the water jet and the hob mounting plate 14 is realized.
The support 15 is provided with a telescopic driving mechanism 6, the telescopic driving mechanism 6 is provided with two output ends, one of the output ends is connected with a water jet and a hob mounting plate, and the other output end is connected with a support rod 12. The telescopic driving mechanism 6 is composed of a second motor 61, a worm 62, a worm wheel 63, a bearing seat 64, a screw rod 65, a nut 66 and a bearing 67, the second motor 61 is installed on the support 15, an output shaft of the second motor 61 is fixedly connected with the worm 62, one end, away from the second motor 61, of the worm 62 is sleeved with the bearing seat 64, the bearing seat 64 is installed on the support 15, the worm 62 is meshed with the worm wheel 63, the worm wheel 63 is in interference fit with the nut 66, the outer surface of the nut 66 is in interference fit with the bearing 67, the bearing 67 is fixedly connected onto the support 15, the nut 66 is in threaded connection with the screw rod 65, two ends of the screw rod 65 respectively correspond to two output ends of the telescopic driving mechanism 6, one end of the screw rod 65 is fixedly connected with the water jet and the hob mounting plate 14, and the other end of the screw rod 65 is fixedly connected with the support rod 12. The telescopic driving mechanism 6 has the effects that power is provided by the second motor 61, the speed is reduced by the meshing of the worm wheel 63 and the worm 62 to increase torque output, and larger torque is provided, so that the nut 66 and the screw rod 65 are driven to move, the screw rod 65 pushes the substrate 10 and the simulation pressing plate 9 (or the water jet and the hob mounting plate 14) to move, and the simulation materials are extruded and compacted.
The one end that flexible actuating mechanism 6 was kept away from to bracing piece 12 rotates and is connected with base plate 10, and the one end that bracing piece 12 was kept away from to base plate 10 is provided with simulation clamp plate 9, and the effect of simulation clamp plate 9 lies in, under flexible actuating mechanism 6's power, realizes extrusion, the compaction of simulation material to simulate underground environment.
The rotation driving mechanism 7 is attached to the support rod 12, the rotation driving mechanism 7 has one output end, and the output end of the rotation driving mechanism 7 is connected to the substrate 10. The rotary driving mechanism 7 is composed of a base 71, a third motor 72, a second bearing sleeve 73, a first gear 74 and a second gear 75, the base 71 is fixedly connected with the supporting rod 12, the third motor 72 is installed on the base 71, an output shaft of the third motor 72 is in key connection with the first gear 74, the first gear 74 is meshed with the second gear 75, the second gear 75 is in key connection with the outer surface of the second bearing sleeve 73, the second bearing sleeve 73 is in rotary connection with the supporting rod 12, and the outer surface of the second bearing sleeve 73 is fixedly connected with the substrate 10. The rotation driving mechanism 7 is used for providing rotation power through the third motor 72, the third motor 72 drives the first paper wheel 74 and the second gear 75 to move, and finally drives the second bearing sleeve 73, the substrate 10 and the simulation pressing plate 9 (or the water jet and the hob mounting plate 14) to rotate, so that the substrate 10 and the simulation pressing plate 9 (or the water jet and the hob mounting plate 14) can rotate while linearly displacing, and thus the compaction is tighter (or the rotation of the simulation shield machine is simulated by rotating the water jet and the hob mounting plate 14).
The support rod 12 is rotatably connected with a first bearing sleeve 13, the outer surface of the first bearing sleeve 13 is rotatably connected with at least one connecting rod 11, and one end, far away from the first bearing sleeve 13, of the connecting rod 11 is rotatably connected with a fixing piece 8 for fixing the simulation pressing plate 9. The fixing member 8 is composed of a connecting block 81 and an inserting rod 82, the connecting block 81 and the inserting rod 82 are integrally formed by casting, a through hole for the inserting rod 82 to pass through is formed in the substrate 10, and a blind hole for accommodating the inserting rod 82 is formed in the simulation pressing plate 9. The effect of mounting 8 lies in, is convenient for realize that simulation clamp plate 9 installs on base plate 10, should set up the rubber circle in the blind hole to the frictional force between increase and the mount 8 is convenient for take off the change when avoiding droing.
In this embodiment, the simulation pressing plate 9 has a disc-shaped structure, a groove for accommodating the simulation pressing plate 9 is formed in the substrate 10, and the surface of one end of the simulation pressing plate 9, which is far away from the substrate 10, is an irregular concave-convex surface. The irregular concave-convex surface is convenient for compacting the simulation material put into the simulation testing cylinder 4 and forms an irregular surface after compaction, thereby simulating an underground irregular environment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention. In the present invention, unless otherwise specifically stated or limited, the terms "cover", "fitted", "attached", "fixed", "distributed", and the like are to be understood in a broad sense, and may be, for example, fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Claims (4)
1. A simulation experiment platform combining a high-pressure water jet and a hob comprises a bottom plate (1) and is characterized in that the upper end of the bottom plate (1) is fixedly connected with a plurality of supporting blocks (2), the upper ends of the supporting blocks (2) are fixedly connected with a supporting plate (3), and the upper ends of the supporting plates (3) are fixedly connected with a simulation test cylinder (4);
the gap rotating mechanism (5) is arranged on the supporting plate (3), the output end of the gap rotating mechanism (5) is connected with a support (15), a telescopic driving mechanism (6) is installed on the support (15), the telescopic driving mechanism (6) is provided with two output ends, one output end is connected with a water jet and a hob mounting plate, the other output end is connected with a supporting rod (12), one end, far away from the telescopic driving mechanism (6), of the supporting rod (12) is rotatably connected with a substrate (10), and one end, far away from the supporting rod (12), of the substrate (10) is provided with a simulation pressing plate (9);
the supporting rod (12) is provided with a rotary driving mechanism (7), the rotary driving mechanism (7) is provided with an output end, and the output end of the rotary driving mechanism (7) is connected with the substrate (10);
the supporting rod (12) is rotatably connected with a first bearing sleeve (13), the outer surface of the first bearing sleeve (13) is rotatably connected with at least one connecting rod (11), and one end, far away from the first bearing sleeve (13), of the connecting rod (11) is rotatably connected with a fixing piece (8) for fixing the simulation pressing plate (9);
the gap rotating mechanism (5) is composed of a first motor (51), a driving dial (52), a driven grooved wheel (53) and a rotating shaft (54), the first motor (51) is installed on the supporting plate (3), the driving dial (52) is in key connection with an output shaft of the first motor (51), the driving dial (52) is meshed with the driven grooved wheel (53), the driven grooved wheel (53) is in key connection with the rotating shaft (54), one end of the rotating shaft (54) is rotatably connected to the supporting plate (3), and the other end of the rotating shaft (54) is rotatably connected with the support (15);
the telescopic driving mechanism (6) is composed of a second motor (61), a worm (62), a worm wheel (63), a bearing seat (64), a screw rod (65), a nut (66) and a bearing (67), the second motor (61) is installed on the support (15), an output shaft of the second motor (61) is fixedly connected with the worm wheel (62), the bearing seat (64) is sleeved on one end of the worm wheel (62) far away from the second motor (61), the bearing seat (64) is installed on the support (15), the worm wheel (62) is meshed with the worm wheel (63), the worm wheel (63) is in interference fit with the nut (66), a bearing (67) is in interference fit with the outer surface of the nut (66), the bearing (67) is fixedly connected on the support (15), the nut (66) is in threaded connection with the screw rod (65), two output ends of the telescopic driving mechanism (6) are respectively corresponding to two ends of the screw rod (65), one end of the screw rod (65) is fixedly connected with the water jet and the hob mounting plate (14), and the other end of the screw rod (65) is fixedly connected with the support rod (12);
rotary driving mechanism (7) comprises base (71), third motor (72), second bearing cover (73), first gear (74) and second gear (75), base (71) and bracing piece (12) fixed connection, third motor (72) are installed on base (71), the output shaft and first gear (74) key-type connection of third motor (72), first gear (74) and second gear (75) meshing, the outer surface key-type connection of second gear (75) and second bearing cover (73), second bearing cover (73) rotate with bracing piece (12) and are connected, the surface and base plate (10) fixed connection of second bearing cover (73).
2. The combined high-pressure water jet and hob simulation experiment platform as claimed in claim 1, wherein the driven sheave (53) is a four-groove sheave, and the rotating shaft (54) is rotatably connected to the supporting plate (3) through a deep groove ball bearing.
3. The simulation experiment platform for compounding the high-pressure water jet with the hob according to claim 1, wherein the fixing member (8) is composed of a connecting block (81) and an inserting rod (82), the connecting block (81) and the inserting rod (82) are integrally formed and cast, a through hole for the inserting rod (82) to pass through is formed in the base plate (10), and a blind hole for accommodating the inserting rod (82) is formed in the simulation pressing plate (9).
4. The simulation experiment platform for compounding the high-pressure water jet with the hob according to claim 1, wherein the simulation pressing plate (9) is of a disc-shaped structure, a groove for accommodating the simulation pressing plate (9) is formed in the base plate (10), and the surface of one end, away from the base plate (10), of the simulation pressing plate (9) is an irregular concave-convex surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011090157.XA CN112146867B (en) | 2020-10-13 | 2020-10-13 | Simulation experiment platform for compounding high-pressure water jet with hob |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011090157.XA CN112146867B (en) | 2020-10-13 | 2020-10-13 | Simulation experiment platform for compounding high-pressure water jet with hob |
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| CN112146867B true CN112146867B (en) | 2022-04-29 |
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